A pandemic is an epidemic disease that spreads to many countries or attacks almost every individual in a locality or region. It is very curious because the term pandemic comes from a Greek word meaning
and whose significance has been extended as
It is therefore an epidemic disease that affects several countries and should attack almost all people in a geographical region. Today, attacking almost all people has been restricted by the fact that the disease does not need to affect many people.
The WHO considers the pandemic to be the most serious case of disease, as it involves an increase in reported cases worldwide over the same period of time. The World Health Organization (WHO) is responsible for deciding when an epidemic becomes a pandemic. Although this change in classification has not yet taken place, it has increased from
the overall risk level for the coronavirus. The most recent known cases were the avian and swine flu.